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A method to restrain tampering of electronic Karte in a hospital

Publishing Venue

IBM

Abstract

Disclosed is a method to restrain tampering of electronic Karte (medical record) in a hospital.
In the past, "Karte" was hand-written by a doctor and filed in the form of paper media in a hospital. However, these days, some of the Kartes are input using personal computers or electronic devices and all the Karte data is stored in storage of computers. In such a case the Karte is electronic data and is not necessarily be in a form of paper document. We call the Karte "electronic Karte."
Kartes in hospitals, which record the past diagnostics and treatments, should be kept unchanged and archived for a certain period of years, being regulated by laws. Sometimes, Kartes are used for important evidences of medical suites.
When a Karte is hand-written, it was not easy to tamper (alter) the contents of the Karte because, altering the hand-written document without noticeable vestige is relatively difficult. On the other hand, when a Karte is electronic, it is quite easy to tamper (alter) a part of the Karte because, the data in a computer can be easily edited.

Country

United States

Language

English (United States)

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A method to restrain tampering of electronic Karte in a hospital

Disclosed is a method to restrain tampering of electronic Karte (medical record) in a hospital.

In the past, "Karte" was hand-written by a doctor and filed in the form of paper media in a hospital. However, these days, some of the Kartes are input using personal computers or electronic devices and all the Karte data is stored in storage of computers. In such a case the Karte is electronic data and is not necessarily be in a form of paper document. We call the Karte "electronic Karte."

Kartes in hospitals, which record the past diagnostics and treatments, should be kept unchanged and archived for a certain period of years, being regulated by laws. Sometimes, Kartes are used for important evidences of medical suites.

When a Karte is hand-written, it was not easy to tamper (alter) the contents of the Karte because, altering the hand-written document without noticeable vestige is relatively difficult. On the other hand, when a Karte is electronic, it is quite easy to tamper (alter) a part of the Karte because, the data in a computer can be easily edited.

Then, when a electronic Karte system is introduce in a hospital, replacing hand-written Karte system, one big concern is how to restrain the tampering Kartes and how to keep enough auditability of contents of Kartes.

A few method to solve the concern were proposed in the past:1. Print-out the latest Karte and pass it to the patient at every examination by a doctor. (The patient will keep the printed Karte as an evidence.)2. Establish auditable Karte system that restrain altering the contents of a Karte anytime after the Karte is written. Rewriting and altering of Kartes are forbidden by personal authentication and time stamping for example, and the system should have enough auditability by the third party.

However, the above shown methods have problems:1. Print-out the Karte at every examination requires additional work loads and costs for hospitals and will be costly for hospitals and patients as a result. It is also unlikely the patients will willingly keep them filed because the volume of the documents. In this system, all the Kartes will be disclosed to patients. The disclosure of Kartes to patients, which is another social issues under discussion, may cause other problems to be solved depending on countries. For example, Japan has not yet legally persuade hospitals disclose Karte data to patients.2. Establishing auditable Karte system requires expensive systems and costs large investment. And in addition, the systems are possibly tampered when the owner hospital and doctors maliciously want to hide or tamper the contents of the Karte by every efforts to cheat the system, as far as the system is owned by the hospital and located in the hospital.

In order to solve the above problems, a new method to restrain tampering of electronic Karte (medical record) in a hospital, is proposed.